Need A Place To Live

My two year old son and I need some help. My soon to be ex husband kicked us out of the house and moved in a new chick, obviously pregnant. I don't know how long he has been with her, but that is not the point ow. I need help coming up with a deposit so we can get a place. We pretty much live in my car, although every once and a while we have a floor or couch. Can't sign up for housing assistance due to applications being closed, and I am at my wits end. I just want to take care of my son, he deserves as least a place to live. Please help.